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How Does the Heat H Produced by a Current Passing Through a Fixed Resistance Wire Depend on Magnitude of Current I?

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प्रश्न

How does the heat H produced by a current passing through a fixed resistance wire depend on magnitude of current I?

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उत्तर

Heat produced by a current passing through a wire with a fixed resistance depends on the square of current, I.
Heat, H = I2 x R x t

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अध्याय 4: Electricity - Exercise 8 [पृष्ठ २५८]

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लखमीर सिंग Physics Part 1 [English] Class 10
अध्याय 4 Electricity
Exercise 8 | Q 1. | पृष्ठ २५८

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संबंधित प्रश्न

Which particles constitute the electric current in a metallic conductor?


Fill in the folloing blank with suitable words:  

 Current is measured in ............... using an ............... placed in ............... in a circuit.


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  2. What current flows from the battery?

A student made an electric circuit shown here to measure the current through two lamps.

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(a) Are the lamps in series or parallel?
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By what name is the unit joule/coulomb called?

What are the conditions under which charges can move in a conductor?

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Tick(✓) the correct choice in the following:

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A current of 0.2 A flows through a wire whose ends are at a potential difference of 15 V. Calculate:

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(ii) The heat energy produced in 1 minute.


A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:

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